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Recent questions tagged q106
Questions
If the pressure of $N_2/H_2$ mixture in a closed vessel is 100 atm and 20% of the mixture then reacts , the pressure at the same temperature would be
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
ideal-gas-equation
medium
q106
asked
Mar 1, 2014
by
sharmaaparna1
1
answer
Kjeldahl's method cannot be used for estimation of nitrogen in $(i)\; C_6H_5NO_2 ;\; (ii)\;Pyridine; \;(iii)\;C_6H_5 - N = N -C_6H_5 ;\;(iv)\;C_6H_5NHCOCH_3 $
jeemain
chemistry
class11
organic-chemistry
q106
difficult
basic-organic-chemistry
ch12
asked
Feb 28, 2014
by
meena.p
1
answer
Phenols can be prepared by
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
phenols
q106
easy
asked
Feb 26, 2014
by
sreemathi.v
1
answer
Find the position of the point (2,3) relative to the hyperbola $9x^2-y^2=1$?
jeemain
math
class11
coordinate-geometry-conic -sections
hyperbola
ch11
q106
easy
asked
Feb 10, 2014
by
sreemathi.v
1
answer
If $S_{n}=\frac{1}{6}\;n\;(2n^2+9n+13)\;$, then $\sum_{r=1}^n\;\sqrt{a_{r}}\;$ equals.
jeemain
math
class11
ch9
sequences-and-series
easy
sum-of-n-terms-of-special-series
q106
asked
Jan 20, 2014
by
yamini.v
1
answer
What electron transition in a hydrogen atom,starting from the orbit $n=7$ will produce infrared light of wavelength 2170nm?( $R_H=1.09677\times 10^7m^{-1})$
sat
chemistry
atomic-structure
jeemain
physical-chemistry
class11
unit2
bhor's-model
q106
difficult
asked
Jan 16, 2014
by
sreemathi.v
1
answer
The position vector of the vertices $A,B,C$ of a $\Delta\: ABC$ are $\hat i-\hat j-3\hat k,\:2\hat i+\hat j-2\hat k\:\:and\:\:-5\hat i+2\hat j-6\hat k$ respectively. The length of the bisector $AD$ of angle $A$ where $D$ is on the line $BC$ is ?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q106
asked
Jan 5, 2014
by
rvidyagovindarajan_1
1
answer
The left hand derivative of $f(x)=[x]\sin(\pi x)$ at $x=k$, where $k$ is an integer is
jeemain
math
ch13
limits and derivatives
derivatives
medium
q106
asked
Dec 31, 2013
by
sreemathi.v
1
answer
Integrate : $\int \large\frac{e^x + \cos x }{e^x+ \sin x} $$dx$
jeemain
math
class12
ch7
integral-calculus
integration-by-subsitution
easy
q106
asked
Dec 19, 2013
by
meena.p
1
answer
Which one of the following phyla is correctly matched with its two general characteristics ?
aipmt
modelpaper
biology
2008
q106
asked
Dec 18, 2013
by
thanvigandhi_1
1
answer
If the ratio of maximum and minimum intensities of an interference pattern is 36 : 1, then the ratio of amplitudes of the two interfering waves will be :
jeemain
eamcet
physics
2010
q106
asked
Nov 17, 2013
by
thanvigandhi_1
1
answer
When a liquid filled in two vessels A and B of equal volumes, is heated, the coefficients of apparent expansions of the liquids are found to be $ \gamma_1\: and \: \gamma_2$ respectively. If $ \alpha_1$ be the coefficient of linear expansion of A, then the coefficient of linear expansion of B will be :
jeemain
eamcet
physics
2011
q106
asked
Nov 2, 2013
by
thanvigandhi_1
1
answer
If 'f' is focal length of lens in Ramsden's eye peice, crossed wires are placed at
jeemain
eamcet
physics
2012
q106
asked
Oct 20, 2013
by
thanvigandhi_1
1
answer
In Fraunhoffer diffraction experiment , L is the distance between screen and the obstacle, b is the size of the obstacle and $\lambda$ is wavelength of incident light. The general condition for the applicability of Frauhoffer diffraction is
jeemain
eamcet
physics
2008
q106
asked
Oct 18, 2013
by
meena.p
1
answer
An infinitely long thin straight wire has uniform linear charge density of $ \large\frac{1}{3}\;$$ coul.m^{-1}. $ Then the magnitude of the electric intensity at a point 18 cm away is : (given $\in _{0}=8.8 \times 10^{-12} C^2 /N-m^2)$
jeemain
eamcet
physics
2009
q106
asked
Oct 14, 2013
by
meena.p
1
answer
When a liquid is heated in a glass vessel, its coefficient of apparent expansion is $ 1.03 \times 10^{-3}/^{\circ}C$. When the same liquid is heated in a copper vessel, its coefficient of apparent expansion is $ 1.006 \times 10^{-3}/^{\circ}C$.If the coefficient of linear expansion of copper is $ 17 \times 10^{-6}/^{\circ}C$, then the coefficient of linear expansion of the glass is
jeemain
eamcet
physics
2013
q106
asked
Oct 10, 2013
by
thanvigandhi_1
1
answer
Two coherent sources whose intensity ratio is $64 :1 $ produce interference fringes. The ratio of intensities of maxima and minima is :
jeemain
eamcet
physics
2010
q106
asked
Sep 30, 2013
by
meena.p
1
answer
Two uniform stretched string A and B, made of steel , are vibrating under the same tension. If the first overtone of A is equal to the second overtone of B and if the radius of A is twice that of B, the ratio of the lengths of the strings is :
jeemain
eamcet
physics
2011
q106
asked
Sep 24, 2013
by
meena.p
1
answer
A short bar magnet having magnetic moment $4\;Am^2,$ placed in a vibrating magnetometer, vibrates with a time period of 8 seconds. Another short bar magnet having a magnetic moment $8\;Am^2$ vibrates with a time period of $6$ seconds. If the moment of inertia of the second magnet is $9 \times 10^{-2}\;kg\;m^2,$ the moment of inertia of the first magnet is (Assume that both magnets are kept in the same uniform magnetic induction field.)
jeemain
eamcet
physics
2013
q106
asked
Sep 18, 2013
by
meena.p
0
answers
If a compound statement is made up of three simple statements, then the number of rows in the truth table is
tnstate
class12
bookproblem
p240
objective
q106
modelpaper
oct-2009
asked
May 24, 2013
by
poojasapani_1
1
answer
The difference between the focal dintences of any point on the hyperbola $\large\frac{x^{2}}{a^{2}}-\frac{y^{2}}{b^{2}}=$$1$ is $24$ and the eccentricity is $2$. Then the equation of the hyperbola is
tnstate
class12
bookproblem
p275
objective
q106
modelpaper
mar-2007
asked
May 14, 2013
by
poojasapani_1
1
answer
If X follows binomial distribution with parameters n=5,p and P(x=2)=9,P(X=3),then p=__________.
cbse
class12
ch13
q106
p286
fitb
exemplar
sec-a
easy
math
asked
Jan 10, 2013
by
sreemathi.v
0
answers
True or False: If f.g is continuous at $x=a$,then f and g are separately continuous at $x=a.$
cbse
class12
ch5
q106
p116
true-or-false
exemplar
sec-a
easy
math
asked
Jan 3, 2013
by
sreemathi.v
1
answer
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